This is a copied and pasted message from one I just posted to the Walker Genforum:
Since our earlier postings, one of my Walker cousins from the Bedford Co., VA branch has matched several other Walkers in the Y-DNA tests, including a descendant of the James and Henry Walker family of Charles City Co., VA, indicating my ancestor David Walker of Dinwiddie who married Mary Munford was probably a son of Alexander Walker of James City Co., VA. Also, there have been some revelations about research which gives strong circumstantial evidence of these Walkers descending from the Rev. John Walker family of Aberdeen, Scotland.
As a Pettus descendant also, though through my great-great-great-grandmother Walker, I am still interested in whether Amy Walker Pettus was a daughter of my David and Mary Munford Walker. Even though the name Amy has not been used in this family, I tend to think she was because she and her husband lived in Lunenburg Co., VA, which adjoins Dinwiddie. Also, the Pettuses settled in the Kingsmill area of James City Co., VA, as did the Alexander Walker family. In fact, there is a street in the Kingsmill subdivision named Alexander Walker, and the remains of the Thomas Pettus plantation are beside the Kingsmill Resort. It seems highly probable that David Walker was from James City and was acquainted with the Pettuses, and perhaps Amy was born before they settled in Bristol Parish in Dinwiddie.
Bridges Freeman lived in James City also, and I am wondering whether anyone has evidence for his daughter Jane being the wife of Alexander Walker, or if it is simply assumed because two of Alexander Walker's likely grandsons were named Freeman Walker.
If it is true that a William Pettus is preparing a genealogy of the Pettus family, I shall be most interested. I descend from Ann Pettus (daughter of John Dabney Pettus and Anne Overton, likely granddaughter of one of the Thomas Pettuses, though the early generations are sketchy), wife of Joseph Eggleston of "Powhatan," James City Co., VA.